Size:1/2'' - 72'' Standard: ASTMA234, ANSI B16.9/B16.28/B16.25,JIS B2311, DIN 2617 Certificate: ISO 9001, SGS, BV, etc. 180 Degree Elbow(Long Radius) Type elbowPipe Size1/2"—72" Wall ThicknessSCH10,SCH20,SCH30,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120,SCH140,SCH160,XXS, DIN, JIS standard thicknessStandardASTMA234,ASTM A420,ANSI B16.9/B16.28/B16.25,ASME B16.9,JIS B2311-1997/2312, JIS B2311/B2312, DIN ...